Nevada has 2,123 bridges on public roads, according to the FHWA National Bridge Inventory. Of those, 22 are rated in poor condition — a rate of 1% — below the national average of 6.7%. Another 901 are in fair condition, while 1,200 are in good condition.
Use the interactive Nevada bridge map below to explore every bridge, color-coded by condition. Click any cluster to zoom in, then click an individual bridge for its route, structural ratings, year built, daily traffic, and last inspection date. Filter by condition using the checkboxes, or switch to satellite view to see bridges from above. For a national comparison, see the full US bridges interactive map.
Nevada Bridge Conditions by the Numbers
- 2,123 total bridges on public roads in Nevada
- 22 in poor condition (1%) — below the national average of 6.7%
- 901 in fair condition (42.4%)
- 1,200 in good condition (56.5%)
- Oldest bridge in the inventory: TUNGSTEN RD, built 1900
Oldest Bridges in Nevada
The oldest bridges in Nevada date back to the 1900s. The ten oldest Nevada bridges still in the national inventory:
| Route / Facility | Crosses | Year Built | Condition |
|---|---|---|---|
| TUNGSTEN RD | PIT TAYLOR CANAL | 1900 | Fair |
| LUX LN | WALKER RVR | 1900 | Fair |
| PAINTED ROCK RD | TRUCKEE RVR | 1902 | Fair |
| BRIDGE STREET | HUMBOLDT RIVER | 1910 | Fair |
| SR430 S VIRGINIA | DRY CREEK | 1920 | Fair |
| ARLINGTON AV | TRUCKEE RVR | 1921 | Fair |
| SR430 N VIRGINIA | DITCH | 1922 | Fair |
| SR 230/STARR VLY | SPRR AND DRY WASH | 1924 | Fair |
| IRR US 395 | ALLERMAN CANAL | 1927 | Good |
| BRIDGE STREET | TRUCKEE RIVER | 1928 | Fair |
Most Concerning Nevada Bridges: Poor Condition and High Traffic
The bridges of greatest concern combine a poor structural rating with high daily traffic loads. These Nevada bridges carry the most vehicles per day while rated in poor condition:
| Route / Facility | Crosses | Daily Traffic | Year Built | Deck | Superstructure | Substructure |
|---|---|---|---|---|---|---|
| I 80 | CITY STREETS(NUGGET) | 69,000 vehicles/day | 1966 | Fair (5) | Poor (4) | Good (7) |
| I 80 | CITY STREETS(NUGGET) | 69,000 vehicles/day | 1966 | Fair (5) | Poor (4) | Good (7) |
| PARADISE RD | TROPICANA WASH | 36,000 vehicles/day | 1971 | N/A | N/A | N/A |
| KEYSTONE AV | TRUCKEE RIVER | 12,800 vehicles/day | 1966 | Satisfactory (6) | Satisfactory (6) | Poor (4) |
| ARLINGTON AV | TRUCKEE RVR | 10,000 vehicles/day | 1938 | Poor (4) | Poor (4) | Satisfactory (6) |
How Nevada Bridge Conditions Are Assessed
Bridge condition in the NBI is determined by ratings of three structural components — deck, superstructure, and substructure — on a scale of 0 (failed) to 9 (excellent). A bridge is classified as good when all three components score 7 or above. It is classified as poor when any component scores 4 or below. Ratings of 5 or 6 on any component with no component below 5 result in a fair classification. NDOT coordinates inspections across Nevada in line with FHWA standards, with most bridges inspected on a 24-month cycle.
Frequently Asked Questions
How many bridges in Nevada are in poor condition?
22 of Nevada’s 2,123 bridges are currently rated in poor condition by the FHWA National Bridge Inventory, a rate of 1%.
What is the oldest bridge in
The oldest bridge recorded in Nevada’s NBI inventory is TUNGSTEN RD, built in 1900.
What does a poor bridge rating mean?
A poor rating means at least one of a bridge’s three key structural components — deck, superstructure, or substructure — has been rated 4 or below on the NBI 0-9 scale. A rating of 4 is defined as “poor condition,” and ratings of 3, 2, 1, or 0 indicate increasingly serious deterioration. Poor-rated bridges are not necessarily unsafe or closed, but they require priority attention and monitoring.
View all 624,000+ US bridges on the national interactive map
Compare with neighboring states: Arizona bridges map | California bridges map | Idaho bridges map | Oregon bridges map | Utah bridges map
